Links
- More information: Publisher Index Page (html)
- Download citation as: RIS | Dublin Core
Abstract
A state-of-the-art seismic monitoring system comprising 36 accelerometers and a data-logger with real-time capability was recently installed at Building 54 on the campus of the Massachusetts Institute of Technology [MIT], Cambridge, Massachusetts. The system is designed to record translational, torsional and rocking motions, and to facilitate computation of drift between select pairs of stories. The cast-in-place, reinforced concrete building is rectangular in plan but has vertical irregularities. Heavy equipment is installed asymmetrically on the roof. Spectral analyses and system identification performed on one set of low-amplitude ambient data reveal distinct fundamental translational frequencies in the structural NS and EW directions [0.75 and 0.67Hz, respectively], a torsional frequency of 1.49 Hz, a rocking frequency of 0.75 Hz, and very low damping. Such results from low-amplitude data serve as baseline against which to compare the behavior and performance of the building during stronger shaking caused by future earthquakes in the region.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Revelations from ambient shaking data of a recently instrumented unique building at MIT campus |
| Year Published | 2011 |
| Language | English |
| Publisher | IOMAC |
| Contributing office(s) | Earthquake Science Center |
| Description | 8 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | IOMAC 2011. Proceedings |
| Country | United States |
| State | Massachusetts |
| City | Cambridge |
| Other Geospatial | MIT campus |
| Google Analytic Metrics | Metrics page |